Perhaps this is a post more suited for Halloween (Samhain), but I couldn't wait!
The little goblin bat (Mormopterus minutus) is a species of bat in the family of the free-tailed bats.
They are endemic to Cuba and are vulnerable due to habitat loss. During the day they can be found roosting in the palm tree, and in human-made structures. Using echolocation in a variable pattern of calls, the diet of this bat is entirely composed of insects.
Although many bats use echolocation, this species has the ability to change its style based on the environment it is in.